I had a problem with crashing and it seems to be fixed now! Check out this link:
The game was crashing on me every hour and I tried everything, including contacting SWTOR customer service (they suggesstions they made did not work!). I turned to the web and found the link above, tried it and now my game is not crashing!! I can't believe it was so simple to fix as I suffered for months. Anyway, hope this helps others.